molex
Micro-Fit 3.0 Connector
System Product Family
Micro-Fit 3.0 Connector Systems, available in multiple circuit sizes and cable lengths
for power and signal applications, offer a 3.00mm pitch, a 8.5A maximum current
rating and many design options such as a terminal position assurance, blind-mating
and compliant pin features
Features and Advantages
SMT, press-fit or surface mount
compatible versions available
Provides design flexibility. Offers options
to meet many application needs
Optional terminal position
assurance (TPA) feature
Reduces assembly error that results in
terminal back-outs. Single row: one-piece
plug and receptacle design with
integrated secondary lock.
Dual row: two-piece TPA design
Fitting nails and
solderable clips available
Offers header retention and
strain relief options
Fully isolated terminals
Protect against potential
damage of terminals during
handling and mating
High-temperature
LCP headers
Withstand 260˚C IR
reflow processes
Positive latching
Ensures a reliable
connection
Fully polarized housings
Prevents accidental
mismating
Micro-Fit BMI Connectors
Micro-Fit (Compliant Pin)
CPI Connectors
Micro-Fit RMF
(Reduced Mating Force) Terminals
Micro-Fit TPA Single Row Plug
Blind-mating wire-to-wire and wire-to-board connectors
Offers full range of options for every application and orientation
Self-aligning feature molded into housings
Allows up to 2.54mm misalignment
Uses eye-of-the-needle press-fit design
Provides a reliable connection
Accepts standard Micro-Fit female
and male crimp terminals
Eliminates the need to purchase or
inventory additional terminals
Available in 22 to 24 and 26 to 30 AWG
Delivers design flexibility for a broad range of
applications
Reduction in engagement
and disengagement forces
Supports ergonomics and
user-friendly interface
Available with factory-applied lubricant
Increases durability to 250 mating cycles
TPA terminals and terminals with
locking tangs available
Offers design flexibility. Locking tang
secures terminals in housings. TPA
terminals compatible with TPA plugs
only
The plug’s TPA retainer mates with the existing Micro-Fit TPA
Receptacle to prevent terminal back-outs in wire-to-wire applications
Prevents end product failure. Ensures both components provide a
reliable connection
Terminal position
assurance (TPA)
feature with integrated
secondary lock
Eliminates terminal
back-outs resulting from
improper assembly
10.0A RMF
terminal available
Delivers higher power
with existing Micro-Fit
components. Enables
running changes to
higher amperage
30 to 18 AWG terminals
available
Delivers design flexibility
to meet the power needs
of a range of applications
Specifications
REFERENCE INFORMATION
Packaging:
UL File No.: E29179
CSA File No.: LR19980
Mates With:
Micro-Fit 3.0 Single-Row Plug
(Series 43640) and Header (Series 43650);
TPA Single-Row Receptacle (Series 171850)
Micro-Fit 3.0 Dual-Row Plug Housing
(Series 43020) and Header
(Series 43045 and 44914)
TPA Dual-Row Receptacle (Series 172952);
TPA-Dual Row Plug (Series 203632)
Terminal Used:
Micro-Fit 3.0 female crimp terminals
(Series 43030 and 46235)
Designed In: Millimeters
RoHS: Yes
Halogen Free: Yes (Non-Glow-Wire Versions)
Glow Wire Capable: Option Available, Contact Molex
MECHANICAL
Contact Insertion Force (max.): 14.7N per contact
Contact Retention to Housing (min.): 24.5N
Mating Force (max.): 8N per circuit
Unmating Force (min.): 2.4N per circuit
Durability (max.): typically 30 cycles,
refer to product specifications
PHYSICAL
Housing: Nylon
Contact: Various
(Phosphor Bronze, Copper Alloy – see Product
Specifications for Particular Connector System)
Operating Temperature: -40 to +105°C
ELECTRICAL
Voltage (max.): 600V
Current (max.): 8.5A
(Please see product specifications;
determined by terminal used)
Contact Resistance (max.): 10 milliohms
Dielectric Withstanding Voltage: <5mA
Insulation Resistance (min.): 1,000 Megohms
Micro-Fit 3.0 Connector
System Product Family
Consumer
Washers and dryers
Freezers
Gaming machines
Printers
Refrigerators
Scanners
Security systems
Vending machines
White goods
Telecommunications/Networking
Routers and switches
Servers
Storage
Medical
Diagnostic equipment
Patient monitors
Sustainable Energy
Solar power
Automotive
Harness manufacturers
Non-sealed applications
Inside devices
Applications
Refrigerator
Servers
Office Equipment
molex
Ordering Information
Micro-Fit 3.0 Connector
System Product Family
Series No. Component
43030 Female Terminal
(Available in: 0.25µm Select Tin, 0.38µm and 0.76µm Select Gold)(18 - 30AWG)
46235 Reduced Mating Force (RMF) Female Terminal, available with or without Lubricant
(Available in: 0.25µm Select Tin, 0.38µm and 0.76µm Select Gold)(20 - 30AWG)
203951 RMF Female Terminal (Available in: 0.25µm Select Tin)(18 AWG)
43031 Male Terminal
(Available in: 0.25µm Select Tin, 0.38µm and 0.76µm Select Gold)(18 - 30AWG)
43031-5XXX
TPA Plug Male Terminal (Used with: Housing Series 200875)(Available in: Preplated Tin 1µm - 2.5µm, 0.38µm Min Selective Gold
Over 2.5µm Min Selective Tin Over 1.27µm Overall Nickel, 0.76µm Min Selective Gold Over 2.5µm Min Selective Tin Over
1.27µm Overall Nickel, 2.5µm Min Matte Tin Over 1.27µm Overall Nickel)(20 – 30AWG)
43025 Dual-Row Receptacle Housing (mates with 43020, 43045, 44914, 44242)
(Available in: UL 94V-0, Glow Wire, Low-Halogen)(2 - 24 Circuits)
43020 Dual-Row Plug (mates with 43025, 45132, 245132, 172952)
(Available in: UL 94V-0, Glow Wire, Low-Halogen) (Panel/Non-Panel Mount)(2 - 24 Circuits)
43045
Dual-Row Header (mates with 43025, 45132, 245132, 172952)
(Available in: 0.25µm Select Tin, 0.38µm and 0.76µm Select Gold)(2 - 24 Circuits)
(Right Angle and Vertical Orientations; Surface Mount, Through Hole - Kinked Pin and Through Hole Termination Interface Style)
43645 Single-Row Receptacle (mates with 43640, 43650)
(Available in: UL 94V-0, Glow Wire, Low-Halogen)(2 - 12 Circuits)
43640
Single-Row Plug (mates with 43645, 171850)
(Available in: UL 94V-0, Glow Wire, Low-Halogen)(2 - 12 Circuits)
(Panel Mount and Non-Panel Mount)
200875 Single Row TPA Plug (Mates with Micro-Fit 171850 and 43645)
(UL94V-0)(Low Halogen)(Color – Black)(2-7 Circuits)
43650
Single-Row Header (mates with 43645, 171850)
(Available in: 0.25µm Select Tin, 0.38µm and 0.76µm Select Gold)(2 - 12 Circuits)
(Right Angle and Vertical Orientations; Surface Mount, Through Hole - Kinked Pin and Through Hole Termination Interface Style)
171850 TPA Single-Row Receptacle (mates with 43640, 43650)
(Available In: UL 94V-0, Low-Halogen)(2 - 7 Circuits)
172952
TPA Dual-Row Receptacle (2 TPA parts required for each receptacle) (mates with 43020, 43045, 44914)
(Available In: UL 94V-0, 94V-2, Glow Wire, Low-Halogen)(4 - 22 Circuits)
(Black and Natural Color)
203632 TPA Dual-Row Plug (Mates with 172952 and 43025)
172953
TPA Retainer (2 TPA parts required for each receptacle)
(Available In: Low-Halogen)(4 - 22 Circuits)
(Black and Natural Color)
45132
Off-the-Shelf Micro-Fit TPA Discrete Wire Cable Assemblies
(Available in: 4 - 8 Circuits)(1.0M, 150.00mm, 300.00mm Lengths)
molex
©2018 MolexOrder No. 987650-5984 Rev. 6 USA/0k/GF/2019.11
Ordering Information
Series No. Component
44133 BMI Dual Row, Panel Mount Receptacle Housing (mates with 44300, 44432, 44428, 45280)
(Available In: UL 94V-0, Halogen-Free)(4 - 24 Circuits)
44300 BMI Dual Row, Panel Mount Plug Housing (mates with 44133, 44769, 44764)
(Available In: 4 - 24 Circuits)
44428 BMI Dual Row, Surface Mount Compatible, Right Angle Headers (mates with 44769, 44764, 44133)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; Low-Halogen)(4 - 24 Circuits)
44432 BMI Dual Row, Surface Mount Compatible, Vertical Header (mates with 44769, 44764, 44133)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; Low-Halogen)(4 - 24 Circuits)
44764 BMI Dual Row, Right Angle PCB Receptacle Header with Press-fit Plastic Pegs (mates with 44300, 44428, 44432, 45280)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; Low-Halogen)(4 - 24 Circuits)
44769 BMI Dual Row, Vertical Receptacle Header with Press-fit Plastic Pegs (mates with 44300, 44432, 45280, 44428)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; Low-Halogen)(4 - 24 Circuits)
45280 BMI Vertical Compliant Pin Header, Dual Row (mates with 44769, 44764, 44133)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; UL 94V-0)(4 - 24 Circuits)
44914 Compliant Pin Vertical Header, Dual Row (mates with 43025, 172952)
(Available In: Tin, 0.38µm and 0.76µm Select Gold; Glow Wire)(4 - 24 Circuits)
46622 BMI Single Row Header (mates with 46623, 46625)
(Available in Tin, 0.38µm and 0.76µm Select Gold; UL 94V-0, Halogen-Free; Right Angle, Vertical)(2 - 7 Circuits)
46623 BMI Single Row Panel Mount Receptacle (mates with 46622)
(UL 94V-0; Halogen-Free)(2 - 7 Circuits)
46625 BMI Single Row Panel Mount Plug (mates with 46622)
(UL 94V-0; Halogen-Free)(2 - 7 Circuits)
Custom Product Description
Contact Molex
Customized Micro-Fit Overmolded Cable Assemblies
Customized Micro-Fit Discrete Wire Cable Assemblies
www.molex.com/link/microfit30.html
Micro-Fit 3.0 Connector
System Product Family
Molex is a registered trademark of Molex, LLC in the United States of America and may be registered in other countries; all other trademarks listed herein belong to their respective owners.
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